For the friends who drive the crane, the thing that makes them feel a headache is that during the operation of the crane , there are a lot of unnecessary glitches. Leading to related work cannot continue. This will bring a lot of economic losses to work and self. Therefore, it is very important for every crane driver's friend to master the maintenance knowledge of some common crane problems. Xiao Bian summed up the common problems and specific maintenance methods for cranes . First of all, one of the most common minor problems is that the crane's boom cannot be extended. If a friend of our crane driver notices that after the boom of the second quarter is extended, the other booms will not be able to reach out. It is certainly due to a problem with the electro-hydraulic reversing valve. In addition, if booms do not telescopically move in sequence, the big reason is that the circuit has failed. Most of these are due to premature energization of electrically conductive magnetic reversing valves due to circuit problems, or premature power interruptions that result in the order of confusion in the control of these circuits. In addition, there is a situation we need to analyze carefully, is the crane's boom occurred in the automatic retraction phenomenon. The reason for this phenomenon is that the piston of the hydraulic cylinder may have been damaged due to some reasons, resulting in his internal leakage caused by lax sealing. The second is that due to the closedness of his balance valve, it can also lead to internal leakage. Therefore, when troubleshooting, be sure to start troubleshooting from the boom outreach process. The engine is closed and the manual reversing valve is adjusted to the neutral position. If the boom is lowered and no hydraulic fluid flows out of the pipe joint, the fault is caused by the closed cylinder plug. The above is about the most common faults and maintenance methods of cranes. Xiaobian hopes that our friends of the crane drivers can carry out a simple inspection and maintenance of the cranes at the fastest time according to the above methods. This will avoid a lot for themselves. unnecessary trouble.
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